Home / 398,578,112.70-597,979,143.45-194,112,858.30

Finding the Fourth Proportional to 398,578,112.70, 597,979,143.45 and 194,112,858.30

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Solution

The fourth proportional to 398,578,112.70, 597,979,143.45 and 194,112,858.30 is: 291,223,820.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,578,112.70 : 597,979,143.45 = 194,112,858.30 : x
  2. Step 2: Convert to fraction form
    398,578,112.70/597,979,143.45 = 194,112,858.30/x
  3. Step 3: Cross multiply
    398,578,112.70x = 597,979,143.45 × 194,112,858.30
  4. Step 4: Simplify right side
    398,578,112.70x = 116,075,440,738,865,232
  5. Step 5: Solve for x
    x = 116,075,440,738,865,232/398,578,112.70
  6. Step 6: Final answer
    x = 291,223,820.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.